Dents and smears

There is a roller in the copier that leaves dents all the way down the center of the page. how do I get to the roller that might be the problem and adjust it. I think it happens after the ink gets on the paper so that the result is that I have dents and ink blobs running down the center of the page is this a costly repair or can i do it myself

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Smeared output can also
result when you refeed a printed page into the
printer to make a double-sided page. This happens because the
rubber
rollers that grip the paper to pull it into the printer can pick
up toner
from the first side’s printing and smear it. So before replacing this is an easy thing to check. Printing multiple pages consecutively will make the pages print progressively cleaner.

Smeared toner
also happens because the nonstick coating on the
fusing roller is scratched or has baked-on debris. This can happen if the printer is in a dirty environment especially. If you are comfortable removing the fuser, you can try to
clean it
with a soft cloth and alcohol, but make sure you let it cool down
first!

If this does not resolve your issue then make sure the fuser is
heating; if not, the thermostat is bad and you will most likely need to replace the entire fuser assembly. This will be pretty expensive to repair so hopefully it's one of those other issues.

Smeared output can result
when you refeed a printed page into the
printer to make a double-sided page. This happens because the
rubber
rollers that grip the paper to pull it into the printer can pick
up toner
from the first side’s printing and smear it. So before replacing
parts, this is an easy thing to check. Printing multiple pages
consecutively
will make the pages print progressively cleaner or you can clean the
rollers with rubbing alcohol.

Smeared toner
also happens because the nonstick coating on the
fusing roller is scratched or has baked-on debris. This can happen
if the printer is in a dirty environment especially. If you are
comfortable removing the fuser, you can try to
clean it
with a soft cloth and alcohol, but make sure you let it cool down
first!

Finally, if this does not resolve your issue then make sure the fuser is
heating; toner that is not heated properly will fall from the page and
smear. If the thermostat is bad or the fuser not working properly, you
will most likely need to
replace the entire fuser assembly. This will be pretty expensive to
repair so hopefully it's one of those other issues.

Smeared output can result
when you re-feed a printed page into the
printer to make a double-sided page. This happens because the
rubber
rollers that grip the paper to pull it into the printer can pick
up toner
from the first side’s printing and smear it. So before replacing
parts, this is an easy thing to check. Printing multiple pages
consecutively
will make the pages print progressively cleaner or you can clean the
rollers with rubbing alcohol.

Smeared toner
also happens because the nonstick coating on the
fusing roller is scratched or has baked-on debris. This can happen
if the printer is in a dirty environment especially. If you are
comfortable removing the fuser, you can try to
clean it
with a soft cloth and alcohol, but make sure you let it cool down
first!

Finally, if this does not resolve your issue then make sure the fuser is
heating; toner that is not heated properly will fall from the page and
smear. If the thermostat is bad or the fuser not working properly, you
will most likely need to
replace the entire fuser assembly. This will be pretty expensive to
repair so hopefully it's one of those other issues.

As for the noise, there are several complex gear and roller segments that drive the paper between the paper tray, the scanner, the fuser, and the finisher. If these are not perfectly aligned or dirty the printer can make a grinding noise. It's even possible that if the paper is not being fed correctly, that the shift might leave segments of it less accessible to the fuser and prevent the toner from adhering to the page.

But I would try using WD-40 to lubricate some of these components and assume the noise and the smearing are separate issues.

I believe you have two problems. One the dent you are talking about unless I see it I don't know for sure but I believe this is minor and something you need to live with. The paper goes through a fuser which uses a teflon sleeve over a heater surface and a lower pressure roller made of rubber. It may be that you need a new lower pressure roller they get little cuts in them sometimes. Two the spots are probably from a faulty toner cartridge. It has a leak.